Car-brake.



Y No. 741,621.

PATBNTBD 00T.- zo H'. E-.IBROWN & R. D. MOON.

CAR BRAKE.

APPLIOATION FILED JULY 18. 1903.

Z SHEETS-SHEET 2.

N0 MODEL.

Il) cpow,

UNITED STATES;

atented ctober 20, 1903.

PATENT OEEIGE.

y HERBERT EDDES BROWN AND RICHARD DAVIS MOON, OF GOLDTHWAITE,

-' TEXAS.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 741,621, dated October20, 1903.

l Application led Cl'ulyr 18, 19,03. Serial No. 166,183. (No model.)

To all whom it may concern,.- A Be it known that we, HERBERT EDDEs BROWNand RICHARD DAvIs MOON, citizens of the United States, residing atGoldthwaite, in the county of Mills and State of Texas, have invented anew and useful Car-Brake,of which the following is a specification. Y

This invention relates to car-brakes, the oloject being to produce adevice of this character of comparatively simple construction which willbe efficient in operation, one in which the brakes will be appliedsimultaneously to all the wheels, and one in which the usual transversebrake-beams are dispensed with, thus obviating danger of accidents whichsometimes occur through said beams falling upon the rails.

With these and other objects in View the invention comprises the noveldetails of construction and combination of parts more fully hereinafterdescribed.

In the accompanying drawings, Figure 1 is a side elevation of the carhaving this invention applied thereto. Fig. 2 is a bottom plan view ofthe same. Fig. 3 is a detail transverse sectional elevation. Fig. 4 is alongitudinal sectional elevation on the line 4: 4 of Fig. 2. Fig. 5 is adetail transverse section of one of the brake-shoes.

Referring to the drawings, 1 indicatesa car provided, as usual, withfront and rear trucks of the ordinary construction, having journalboxes2, in which `the axles of Wheels 3 are journaled.

Pivoted tothe car-bottom vertically above the wheels is a series ofvertical brake-beams 5, arranged one for each of the wheels 3.

These beams are each sustained by its pivot-A ing-bolt 6, upon which itis free to swing, and by a pair of links 7, pivoted at their lower endsto the beam and at their upper ends to the car-bottom, the beams beingprovided at their lower ends with brake-shoes 10, formed, as shown inFig. 5, to bear upon the tread of the wheel and also to receive the angeof the latter, the portion of the.. shoe which' embraces the flangeserving to-prevent transverse displacement of the beam relative to thewheel. 'V

Disposed at substantially the longitudinal center of each truck is avertical block or I member 11, to which the beams disposed, re-

spectively, in front and rear of the truck are attached by links 12,there being provided for each beam a pair of said links, which aredisposed one upon'either side of the beam and attached Vthereto by acommon pivotingbolt 13 andalso to the member 11 by a commonpivoting-bolt 14. It is to be noted that the connecting-links of one ofthe beams is attached at the lower end of the member l1, while those ofthe other beam are attached to said member adjacent to its longitudinalcenter, whereby movement of the upper end of the member in one directionservesto move the brake-shoes into engagement simultaneously with theirrespective wheels, while areverse movement of the member4 releases theshoes. It is also to be observed that owing to the employment of a pairof links for each beam andlying one on either side of the wheel thepressure of the shoe upon the wheel will be equalized, thus insuring auniform wear-v ingv of the parts.

i Attached to the bottom of the car centrally between its trucks is'apair of transverselyspaced straps 15, forming longitudinal guides whichsustain the opposite ends of a transverse beam 16, to each end of whichis pivoted a vertically-depending lever 17, said levers being arrangedin longitudinal falinement each with t-hebrake-beams and members 11 ateither side of the car. Pivoted adjacent to the longitudinal center ofeach lever is a brake-rod 18, which extends rearward and" is attached tothe upper end of rear member 11, therear end ofthe rod being at a pointadjacent to the member arranged in a guide 19, attached to thecar-bottom. A similar brake-rodQO, is pivoted to the lower end of thelever, extends-forward for attachment to the upper end of the`forward'truck member 11, the rod adjacent to said member being' arrangedin a guide 21,' likewise attached to the car-bottom. From thisarrangement it will be seen that when the lever 17fhas its upper endmoved in one directionitwill through the medium of brake-rods 18 2Q movethe members 11 simultaneously for applying the brakes and when moved inthe opposite direction will actuate the members to release the brakesand it will also be noted that owing IOO to the levers 17 being bothconnected with beam 16 the operation of the latter in the mannerpresently to be described will simultaneously actuate the levers, thussimultaneously operating all of the brake-beams of the car.

22 is a cylinder attached beneath the car and in which Works a piston,the rod 23 of which is disposed longitudinally of the car and works inguides 24, bolted or otherwise secured to the bottom of the latter. Thepiston-rod is provided at a point between the guides with a transverseopening 25, through which the beam 16 extends, whereby longitudinalreciprocation of the piston serves to move the beam back and forth inits guides l5.

26 is a lever pivoted at one end, as at 27,

,beneath the car and working at its free end in a guide 28, consistingof a metal strap attached to the car. This lever is connected to thepiston-rod by means of a link 29, pivoted to the forward end of thelatter and to the lever at a point adjacent to its longitudinal center,while the free end of the lever is connected by a link or rod 30 withthe usual hand or foot operated brake lever. (Not shown.)

31 is a pipe extending longitudinally of the car and communicating withthe cylinder 22 to admit a Huid, such as air or steam, thereto foroperating the piston. Thus it will be seen that when it is desired toapply the brakes air is admitted to the cylinder, thus driving thepiston forward and moving the beam 16 forwardly in its guides, wherebystress upon the levers 17 will be exerted in the proper direction forapplying the brakes, as above explained. After the brakeshave beenapplied the air is permitted to escape from the cylinder at the propertime to relieve the piston from pressure, when the weight of the beamsin again swinging to a vertical position will return the piston andattendant parts to normal position. The brakes may be also applied byhand or foot power through the medium of lever 26 and its attendantparts, as will be readily understood.

From the foregoing it will be seen that We produce a device of simpleconstruction which will be highly efficient in operation and one whichis admirably adapted for the attainment of the ends in view.

It is to be understood that We do not limit or confine ourselves to theprecise details herein set forth, inasmuch as minor changes may be madetherein without departing from the spirit or scope of the invention.

Having thus described our invention, what we claim is- 1. Thecombination with a car, of supporting-wheels arranged in pairs atopposite ends thereof, a plurality of vertically disposed brake-beamspivotally connected at their upper ends with the car and arranged oneadjacent to each wheel, a block or member arranged-between each pair ofbrake-beams, links connecting the beams in pairs with the members andoperable thereby for applying the brakes, an operating-lever movablyassociated with the car between the members, rods connecting therespective members with the lever and means for operating the lever.

2. The combination with a car, of supporting-wheels arranged in pairs atopposite ends thereof, a plurality of vertically disposed ybrake-beamspivotally connected at their upper ends with the car and arranged oneadjacent to each Wheel,a block or member arranged between each pair ofbrake-beams and operatively connected therewith, said member beingoperable for simultaneously operating the beams, a transverse barmovably associated with the car between the members, a pair ofoperating-levers carried by the bar and each operatively connected witha pair of the members for simultaneously operating the saine, a cylindercarried by the car, a piston operating therein, means for actuating thepiston, and operative connections between the piston and transverse barfor moving the latter to simultaneously actuate the levers.

In testimony that We claim the foregoing as our own we have heretoaffixed our signatures in the presence of two witnesses.

HERBERT EDDES BROWN. RICHARD DAVIS MOON.

Witnesses:

N. J. MCGUYER, JACK MCGUYER.

